Read Sony HBD-NF7220 Service Manual online
HBD-NF7220
9
2. Pass-fail judgment of the optical device KEM480AHA/C2RP1 (OP1)
Perform pass-fail judgment to judge whether the repair of the optical device KEM480AHA/C2RP1 (OP1) is necessary.
Perform pass-fail judgment to judge whether the repair of the optical device KEM480AHA/C2RP1 (OP1) is necessary.
2-1. Flow of drive section check
NO
NO
Confirm whether
BD (BLX-104) can be
reproduced
Confirm whether
DVD (HLX-513)/
CD (HLX-A1) can be
reproduced
Confirm whether the
drive voltage is the
following values
C991 pin
1 : 12V
C902 pin
1 : 5V
Confirm OP FFC cable
(Part No. 1-848-090-71)
and SPD FFC cable
(Part No. 1-848-089-61),
and replace it when it
has been damaged
Then, confirm whether
this unit operates
normally
Confirm F300, F301,
F302 on the
MB1305 board,
and replace it
when it has been
damaged
Confirm whether
the optical pick-up
IOP is normal in the
service mode
(Refer to “2-2. Flow
of optical device
IOP check”)
Replace the
optical device
KEM480AHA/C2RP1 (OP1)
(Refer to “3. Optical
device KEM480AHA/C2RP1
(OP1) replacement”)
NO
YES
OK
YES
YES
NO
NO
Note: Refer to “2-7. OPTICAL DEVICE BLOCK” on page 20 about how to remove the OPTICAL DEVICE BLOCK.
2-2. Flow of optical device block IOP check
YES
NO
Turn the power on,
and change function
to “BD/DVD”
Press the buttons on
the remote commander
in order of [
x
]
o
[DISPLAY]
o
[
X
]
o
[
M
],
and enter the service
mode
Press the [
m
] button on
the remote commander
to select “[8] Drive”
and press [ ] button
on the remote
commander.
OK
Confirm whether
value is the
specification value
Specification value:
BD :
±6 mA
DVD/CD:
±9 mA
Replace the
optical device
(Refer to “3. Optical
device KEM480AHA/C2RP1
(OP1) replacement”)
Repeat the same
procedure as above to
select “[7] OP Check
Menu” then “[3] dIOP”,
and the dIOP value is
displayed.
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